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Discussion of "Analytical Model of Ground Motion Pulses for the Design and Assessment of Seismic Protective Systems" by W.-L. He and A. K. Agrawal
2010
Journal of Structural Engineering
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This discussion raises a few comments on the paper by He and Agrawal (2008) . The paper develops a useful mathematical model for near-field ground motions affected by directivity focusing and derives closed-form expressions for structural responses. The model accounts for nonstationarity in the ground motion by expressing the ground velocity as a steady-state function modulated by an enveloping function. The study also examines the reduction of the structural deformations using supplemental dampers. The following comments are raised:
doi:10.1061/(asce)st.1943-541x.134
fatcat:oxsqyvg5abbdrgaldmk37qr4dm